stru_swap.cpp

来自「在c环境下的对数据结构进行讲解,包含有例题及答案」· C++ 代码 · 共 36 行

//stru_swap.cpp					结构数组排序
#include <iostream.h>				//cout,cin
#include <conio.h>				//getch()
struct rec
{ int chi,eng,math,total;
  float ave;
};
void output_data(rec *,char*);
void main()
{ rec a={80,80,80},b={90,90,90},t;		//a,b设置初值
  a.total = a.chi + a.eng + a.math;	//计算总分
  a.ave = a.total /3.0;			//计算平均
  b.total = b.chi + b.eng + b.math;
  b.ave = b.total /3.0;
  cout <<"互换前:\n";
  output_data(&a,"a");				//输出
  output_data(&b,"b");
  //互换
  t = a;
  a = b;
  b = t;
  cout <<"互换后:\n";
  output_data(&a,"a");
  output_data(&b,"b");
  getch();
}	//end of main()
//output_data
void output_data(rec *a,char *s)
{ cout << s << "=";
  cout << a->chi;
  cout << " " << a->eng;
  cout << " " << a->math;
  cout << " " << a->total;
  cout << " " << a->ave<<"\n";
}